From: Richard Kenner <kenner@gcc.gnu.org>
Date: Thu, 10 Mar 1994 20:23:01 +0000 (-0500)
Subject: (dup2): Catch dup() failure.  Return correct value.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=eadbc96110328dd5ccab01c9e4dfb478aa0a1c6b;p=gcc.git

(dup2): Catch dup() failure.  Return correct value.

From-SVN: r6740
---

diff --git a/gcc/collect2.c b/gcc/collect2.c
index 8256d87e246..9f097a9ae4b 100644
--- a/gcc/collect2.c
+++ b/gcc/collect2.c
@@ -277,14 +277,14 @@ dup2 (oldfd, newfd)
   int fd;
  
   if (oldfd == newfd)
-    return 0;
+    return oldfd;
   close (newfd);
-  while ((fd = dup (oldfd)) != newfd) /* good enough for low fd's */
+  while ((fd = dup (oldfd)) != newfd && fd >= 0) /* good enough for low fd's */
     fdtmp[fdx++] = fd;
   while (fdx > 0)
     close (fdtmp[--fdx]);
 
-  return 0;
+  return fd;
 }
 #endif